Unit3Computers教案

1、Unit 3 Computers教案 Reading By Jin LidanTeaching aims:Ability aims:To inspire students with strong interest in the computers and improve students English ability. Knowledge aims:1)Learn how to describe different kinds of computers in English.2)To learn and remember the following words: abacus; calcul

2、ator; PC; laptop; PDA; robot; development; universalEmotional aims: Let Ss learn about the significance of the development of computers.Teaching important points:Let Ss know the basic expressions about the computers.Teaching difficult points:Make Ss know the development of computers and learn the sp

3、irit of scientists.Teaching methods:Individual work and team work.Teaching steps:Step1. Enjoy a video Enjoy a video about the dance of robots.Step2. Play a game1. What is the full name of PC? _2. What is IT? _3. What is W.W.W? _4. A riddle (謎語(yǔ))It was born in China. Many people used it for calculatin

4、g in the past. It has a wooden frame（框架）with beads. _5. What is PDA? _6. A riddle(謎語(yǔ)) It is a machine that works automatically. It can do a lot of tasks but doesnt feel tired, especially suitable for doing jobs too boring, difficult,or dangerous for human beings. _Step3.Learning tips閱讀FGG原則：Find Gue

5、ss Get 找到 猜到 得到1.Find the topic sentence.(找中心句)2.Guess the meaning of the words. (1)According to the root of the word根據(jù)詞根猜詞義 (2)According to the context根據(jù)上下文猜測(cè)詞義 把握文章細(xì)節(jié)與基調(diào)， 閱讀理解勝利在握！ Step4:Skimming1. Whats the main idea of this passage? _A.The development of computersB. The development and use of co

6、mputersC. A machine which is simple-mindedD. Computers may replace human beings 2.What is the writing order of this _passage?A. function B. Size C. time3.Match the main ideas and the paragraphs.Para 1: These changes only became possible as my memory improved.Para 2: Since the 1970s many new applicat

7、ions have been found for me.Para 3: Over time I have been changed quite a lot.Step5.Scanning1.Read paragraph 1 (1) Fill in the blanks.Development Early days Name Function poorstrongA _ machine Simplify difficult sums An _ machine Think logically and produce an answer quickly A _ machine Solve diffic

8、ult mathematical problem (2)When was the computer the biggest?_A. In 1642. B. In 1936. C. In the 1940s. D. In the 1970s. 2. Read paragraph 2 (1)Why did the computer totally change its shape?_A. Because the computer could do many things. B. Because the computer could simplify sums. C. Because its mem

9、ory improved. D. Because the computer never forgot anything. (2)When were the computers connected to one another?_A.In the early 1960s. B.In the 1970s. C. In the 1940s. D. In the year of 1936. 3.Read paragraph 3.According to the last paragraph, which were not mentioned in the use of the computer?_A.

10、 Mobile phones B. Rockets C. Bikes D. Robots Step6.ExerciseSummary of the text. I began as a calculating machine in 1642. When I was young, I was good at _ (simplify)difficult sums. It took nearly 2 hundred years before I could think_ (logical) and produce _(quick)answers than any person. At that ti

11、me, I was called a _ (technology) revolution. In 1936, I _ (build)as a universal machine. From then on, I grew _(rapid) both in size and brainpower. In the 1960s, I have a family _ (connect) by a network . From then on, I was able to share my knowledge _ others through the WWW. After that, I had man

12、y new _(application). Now, I am a _ (devote)friend of the human race.Step7. Competition and composition.（選做）1. Competition :What are the advantages and disadvantages of computers? Who give more examples will be the winner!2. Composition基礎(chǔ)寫(xiě)作隨著時(shí)間的推移，電腦已經(jīng)成為現(xiàn)代化生活的一部分。我們可以利用網(wǎng)絡(luò)申請(qǐng)工作，收發(fā)信息，買賣商品等。從某種意義上說(shuō)，網(wǎng)絡(luò)改變

13、了我們傳統(tǒng)的生活方式。但是, 網(wǎng)絡(luò)的使用中也出現(xiàn)了很多問(wèn)題。家長(zhǎng)應(yīng)該以某種方式阻止孩子玩兒網(wǎng)絡(luò)游戲，以防孩子上癮。不管怎樣，它的優(yōu)點(diǎn)還是多于不足。我認(rèn)為，只有我們正確利用好網(wǎng)絡(luò)這個(gè)工具，我們的生活才能越來(lái)越好。As time goes by（隨著時(shí)間流逝）, people now have easy access to the Internet，which plays an increasingly imporant role in our daily life. In a way（在某種程度上）, it has changed our traditional life style, beca

14、use we can do a number of things on the Internet now, such as（例如） applying for jobs, sending and getting information as well as（和） selling and buying items.However（然而）, problems also arise when we use the Internet. Parents should keep their children from playing computer games somehow（不管以什么方式） because they are likely to be addicted to it. A